i have had a couple of problems with my penis the head is stinging and it seems to be skinning around the head and underneath the head and the skin below that is red and seems bruised. I've been very sexually active over past week with my girlfriend, she too had been complaining about stinging and soreness for her self. at first she wasn't able to have sexual intercourse and now I'm unable to. This has been going on for 3 days.